Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 520K TDS METROCOM, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
608-310 3 Madison WI MDSNWIGJ5MD  354      
608-310 4 Madison WI MDSNWIGJ5MD  354   2005-06-13   
608-310 5 Madison WI MDSNWIGJ5MD  354   2005-06-13   
608-310 6 Madison WI MDSNWIGJ5MD  354      
608-310 7 Madison WI MDSNWIGJ5MD  354      
608-310 8 Madison WI MDSNWIGJ5MD  354      
608-310 9 Madison WI MDSNWIGJ5MD  354      
608-313 A Beloit WI MDSNWIGJ5MD  354      
608-313 0 Beloit WI MDSNWIGJ5MD  354      
608-313 1 Beloit WI MDSNWIGJ5MD  354      
608-313 3 Beloit WI MDSNWIGJ5MD  354      
608-313 8 Beloit WI MDSNWIGJ5MD  354      
608-313 9 Beloit WI MDSNWIGJ5MD  354      
608-314 A Janesville WI MDSNWIGJ5MD  354      
608-314 0 Janesville WI MDSNWIGJ5MD  354      
608-314 1 Janesville WI MDSNWIGJ5MD  354      
608-314 2 Janesville WI MDSNWIGJ5MD  354      
608-314 3 Janesville WI MDSNWIGJ5MD  354      
608-314 8 Janesville WI MDSNWIGJ5MD  354      
608-314 9 Janesville WI MDSNWIGJ5MD  354      
608-315 0 Tomah WI MDSNWIGJ5MD  354   2023-08-07   
608-316 3 Madison WI MDSNWIGJ5MD  354   2007-07-19   
608-316 4 Madison WI MDSNWIGJ5MD  354   2007-07-19   
608-316 8 Madison WI MDSNWIGJ5MD  354   2007-11-12   
608-321 A Madison WI MDSNWIGJ5MD  354      
608-333 A Madison WI MDSNWIGJ4MD  354      
608-333 0 Madison WI MDSNWIGJ4MD  354   2004-08-22   
608-352 2 Janesville WI MDSNWIGJ5MD  354   2010-07-12   
608-370 7 Sauk City WI MDSNWIGJ4MD  354   2006-01-07   
608-395 2 Madison WI MDSNWIGJ5MD  354   2006-10-30   
608-395 3 Madison WI MDSNWIGJ5MD  354   2006-10-30   
608-395 6 Madison WI MDSNWIGJ5MD  354   2007-05-26   
608-414 1 Mineral Point WI MDSNWIGJ4MD  354   2023-06-15   
608-425 1 Dodgeville WI MDSNWIGJ4MD  354   2023-06-15   
608-441 A Madison WI MDSNWIGJ5MD  354      
608-442 A Madison WI MDSNWIGJ5MD  354      
608-443 A Madison WI MDSNWIGJ5MD  354      
608-443 0 Madison WI MDSNWIGJ5MD  354      
608-443 1 Madison WI MDSNWIGJ5MD  354      
608-443 2 Madison WI MDSNWIGJ5MD  354      
608-443 3 Madison WI MDSNWIGJ5MD  354      
608-443 4 Madison WI MDSNWIGJ5MD  354      
608-443 5 Madison WI MDSNWIGJ5MD  354      
608-446 A Madison WI MDSNWIGJ5MD  354      
608-448 0 Baraboo WI MDSNWIGJ4MD  354   2006-01-07   
608-453 7 Sun Prairie WI MDSNWIGJ4MD  354   2022-06-24   
608-460 2 Sauk City WI MDSNWIGJ4MD  354   2019-03-18   
608-461 4 Bangor WI MDSNWIGJ5MD  354   2023-08-07   
608-478 1 Sun Prairie WI MDSNWIGJ4MD  354   2018-09-09   
608-478 5 Sun Prairie WI MDSNWIGJ4MD  354   2017-06-04   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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